• The Journal of Korean Academy of Prosthodontics
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• v.50 no.3
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• pp.204-209
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• 2012

Surgical extrusion, immediate extrusion following tooth luxation, is a method to preserve one's natural tooth and achieve esthetic restoration without additional periodontal surgery when subgingival dental caries or crown fracture occurs. A 16-year-old male was referred to the clinic from the department of operative dentistry for the esthetic restoration of maxillary left lateral incisor. Due to the crown to root fracture, the tooth was endodontically treated with a buccal crown length of 4 mm. When the palatal flap was elevated, the mesiopalatal cervical fracture area was situated 3-4 mm subgingivally. Crown lengthening was achieved through surgical extrusion. After 3 months of clinical observation and provisional restoration, the maxillary left central incisor was restored with all ceramic crown and obtained a satisfactory clinical result.

• The Journal of Korean Academy of Prosthodontics
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• v.54 no.2
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• pp.140-145
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• 2016

Excessive occlusal wear causes loss of tooth structure, occlusal plane disharmony, impaired function and esthetic problems. Although the decrease of occlusal vertical dimension may be compensated by the growth of alveolar bone and tooth eruption, minimal increase of occlusal vertical dimension may be required for esthetics and retention of prosthesis. In this case, a 44-year-old male patient visited Seoul National University Dental Hospital with chief complaint of severe tooth wear and shade disharmony. Based on assessment of diagnostic wax-up, 3 mm increase of occlusal vertical dimension was determined. Removable occlusal splint and interim prosthesis was used to ascertain patient's comfort and adaptation. After the adaptation period, definitive prosthesis fabricated with full-contour monolithic zirconia were delivered and the patient was recommended to wear a nightguard device for prosthesis protection. This report presents a case of full mouth rehabilitation with the elevation of patient's occlusal vertical height, resulting in satisfactory esthetics and functions.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.9 no.1
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• pp.42-46
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• 2000

치아형태라고 하면 따분하고 재미없는 것으로 생각하기 쉽지만, 치과임상에서 아주 중요한 기초를 형성하고 있다. 지대치형성은 치과보철수복의 첫 단계로서, 좋은 지대치형성은 좋은 보철물로 연결된다. 또한 치과보철 수복의 대부분은 원래의 치아형태수복에 맞추어져 있어서, 치아형태와 지대치형성은 많은 상관성을 가지고 있을 것이라고 유추해 볼 수 있다. 그러나 통상적으로 알고 있는 치아형태는 교합변형태로만 인식하고 있어서, 지대치형성시 치아형태가 큰 도움을 주지는 못하는 실정에 있다. 물론 교합면형태도 중요하지만 그외의 여러형태도 치과임상에 있어서 결코 무시할 수 없다. 필자는 지대치형성에서 고려해야 할 치아형태와 임상적 중요성에 대해서 언급하여 치과의사선생님들의 임상에 도움을 주고자 한다.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.26 no.2
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• pp.130-142
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• 2017

There are frequent cases of retreatment due to lack of communication between dentists and dental technicians during general prosthetic treatment. The success of large-scale therapy begins with small treatments. This report reminds you of the importance of communication through a simple example. To reproduce better colors and shapes, the dentist must provide specific and accurate information and feedback to the dental technician, and the dental technician must have the skills to accurately analyze and express it. In this process, we need to create an environment where we can exchange mutual opinion and produce better prostheses.

• Journal of the Korean Academy of Esthetic Dentistry
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• v.29 no.2
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• pp.75-83
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• 2020

For the successful prosthetics treatment, the collaboration starting from the initial stage between dental clinic and laboratory is important. However, the collaboration can't persist all the processes, giving the ideal shape to prosthetics is one of the responsible part of dental laboratory. I'm going to explain how to access dental technician to case in restricted circumstance.

• The Journal of Korean Academy of Prosthodontics
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• v.51 no.4
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• pp.323-331
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• 2013

Soft tissue collapse around prepared teeth and pontic is inevitable after removal of the provisional restoration during the impression taking procedures. When inserting gingival retraction cord, soft tissue is displaced to an undesired contour. Viscosity of impression material also causes gingival displacement. Therefore, the consideration to transfer the prosthetically contoured soft tissue to master cast is required, especially in the esthetic area. In this report, the methods to maintain the soft tissue contour and transfer to the mastercast will be introduced. Harmonious contour of the soft tissue can be achieved with provisional restoration and be transferred to the master cast with two different techniques mentioned in this case report.

• The Journal of Korean Academy of Prosthodontics
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• v.47 no.3
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• pp.286-294
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• 2009

Statement of problem: In spite of increasing dental treatment for the disabled, there was no collected data on prosthodontic treatment status and dentists' perceptions in Korea. Purpose: The purpose of this study was to research the dentists' perceptions about current prosthodontic treatment status for the disabled in Korea and to suggest public health policies for the disabled. Material and methods: Total of 68 dentists who have regularly treated the disabled were asked to fill questionnaires regarding prosthodontic treatment for the disabled. Results: 1. 45.6% of dentists felt the necessity of an esthetic prosthesis for the disabled. However, 54.3% of dentists reported the improvement of access to implant,orthodontic and esthetic treatment is needed. 2. Most (79.4%) of the dentists thought it is imperative for the government to support the disabled to maintain adequate oral health by providing at least 50% of charge in their prosthesis. Conclusion: Through this research, 97.1% of dentists answered that the current prosthodontic treatment status for the disabled in Korea is poor. This indicated the necessity of the financial support from the government for the disabled.

• Journal of Dental Rehabilitation and Applied Science
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• v.28 no.3
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• pp.253-268
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• 2012

Full-mouth reconstruction of a patient using dental implants is a challenge if there is vertical and horizontal bone resorption, since this includes the gingival area and restricts the position of the implants. however, hard- and soft-tissue grafting may allow the implants to be placed into the desired position. Although it is possible to regenerate lost tissues, an alternative is to use fixed detachable prostheses that restore the function and the esthetics of the gingiva and teeth. Various material combinations including metal/acrylic, metal/ceramic, and zirconia/ceramic have been used for constructing this type of restoration. Other problems include wear, separation or fracture of the resin teeth from the metal/acrylic prosthesis, chipping or fracture of porcelain from the metal/ceramic or zirconia/ceramic prosthesis, and fracture of the framework in some free-end prostheses. With virtually unbreakable, chip-proof, life-like nature, monolithic zirconia frameworks can prospectively replace other framework materials. This clinical report describes the restoration of a patient with complete fixed detachable maxillary and mandibular prostheses made of monolithic zirconia with dental implants. The occluding surfaces were made of monolithic zirconia, to decrease the risk of chipping or fracture. The prostheses were esthetically pleasing, and no clinical complications have been reported after two years.

• The Journal of Korean Academy of Prosthodontics
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• v.58 no.3
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• pp.268-274
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• 2020

Functional and esthetic recovery through reconstruction of the oral and maxillofacial system is important for patients who underwent mandibulectomy due to lesions such as oral cancer. The fibula free flap, which is frequently used in the reconstruction of the mandible, is easy to prosthetic restoration with implant placement. However, patients with growing periods have difficulty in treatment with implants when the size of the fibula is small and residual growth remains. This case is an 11-year-old female patient who underwent mandibulectomy due to osteosarcoma and reconstruction of the mandible using a fibular free flap. Functional and esthetic recovery were obtained through prosthetic restoration using implant-supported fixed prostheses. Implantation site, number of implants, and type of prostheses were considered. Implant-supported fixed prostheses were delivered at 13 years old, and after an additional 1 year observation, stable results were obtained. However, observing changes in the maxillofacial system through further examinations is necessary.

• The Journal of Korean Academy of Prosthodontics
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• v.60 no.2
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• pp.187-194
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• 2022

The use of implants could improve the support, retention, and stability of removable prosthetic restoration for fully edentulous patients with severe alveolar bone resorption. When the prosthesis is manufactured without accurate diagnosis and evaluation, this may lead to unfavorable treatment result. The patient in this case had the treatment of implant overdentures at a private dental clinic, but visited the hospital for retreatment due to soft tissue pain and decreasing retention of existing dentures. The vertical dimension was raised compared to the existing dentures, and overdentures were manufactured using milled bars and additional attachments. The clinical results were satisfactory in the aspect of improved oral hygiene maintenance, function and esthetics.